Prenatal nicotine exposure reduces breathing response of newborns...

April 5, 2006 (see below for presentation details)*

SAN FRANCISCO (April 5, 2006) Exposure to nicotine the equivalent of smoking two packs of cigarets a day produced complicated, abnormal breathing development during the first 18 days of newborn rats, University of Arizona researchers report.

Ralph Fregosi, presenting the results at three American Physiological Society sessions at Experimental Biology, said his team "found that the required increase in breathing in response to reduced oxygen supply was lower in nicotine-exposed animals compared to the controls over their first nine days. This suggests that prenatal nicotine exposure reduces the ability of a neonatal animal to respond to low blood oxygen, which can lead to prolonged and possibly lethal apneas."

Between nine and 18 days, the situation reversed, and nicotine-exposed rats' response was actually higher than controls, showing an overall complicated, abnormal breathing development over the18 days. Fregosi is presenting at an APS "featured topic" as well as at two poster sessions:


1. Featured topic: Developmental changes in respiratory control in neonatal rodents, session 730, Plasticity track sponsored by the APS Respiration Section, Tuesday, April 4 10:30 a.m. Moscone Mezzanine West #270.

12:15 p.m.: Ralph Fregosi: "Influence of prenatal nicotine exposure on development of ventilatory responses to hypoxia and asphyxia." Funding: American Heart Association.

2. 12:45 p.m.- 3 p.m. Tuesday April 4, APS Physiology Developmental changes in respiratory control in neonatal rodents session 751.2/board #C479, "Influence of prenatal nicotine exposure on development of ventilatory responses to hypoxia and asphyxia." Research was by Ralph F. Fregosi, Amanda Rose Brown, Yu-Hsien Huang, and Seres Costy-Bennett , Department of Physiology, University of Arizona; Fregosi also is with the De


Page: 1 2 3

Related biology news :

1. Prenatal stress keeps infants, toddlers up at night, study says
2. Prenatal alcohol exposure alters brain activity in the frontal-striatal areas
3. Prenatal toxicity linked to immune dysfunctions in later life
4. Prenatal nicotine exposure can lead to cardiac function reprogramming in adult offspring
5. Prenatal exposure to glucocorticoids has long-term deleterious effects on newborns
6. Prenatal cocaines lasting cellular effects
7. Prenatal alcohol exposure appears to increase an infants stress response
8. Prenatal vitamins may reduce risk of brain tumors in children
9. Prenatal health strongly influences future economic success
10. Prenatal genistein in soy reduces obesity in offspring
11. Prenatal pesticide exposure and high blood pressure and a decreased ability to copy shapes

Post Your Comments:

(Date:8/7/2020)... ... August 06, 2020 , ... Nine middle ... National STEM Scholar Program, a unique professional development program that provides advanced STEM ... middle school science teachers nationwide. , Created in partnership between the National Stem ...
(Date:7/22/2020)... ... July 21, 2020 , ... ... innovation in technology and compliance, announces a new solution to manage regulated workloads ... every layer of their technology stack complies with FDA and global regulations. USDM's ...
(Date:7/4/2020)... ... 2020 , ... Aesthetics Biomedical (ABM), a leading aesthetics product ... only the products and treatments developed, but also the dedicated team behind the ... brands built by ABM have received several honors already for 2020, each of ...
Breaking Biology News(10 mins):
(Date:7/1/2020)... ... 29, 2020 , ... The Interlocal Purchasing System (TIPS), a ... recently named BioFit Engineered Products an Awarded Vendor. Awarded Vendor status ... cafeteria tables, book trucks and carts at discounted pricing without the delay and ...
(Date:6/28/2020)... ... June 25, 2020 , ... The Indoor Lab, a ... Safe Space™ for businesses of all types to ensure cleanliness, distancing and occupancy with ... , A Safe Space™ enabled business will provide a health performance index system that ...
(Date:6/28/2020)... , ... June 25, 2020 , ... ... advance photodynamic therapy for treating cancer, today announced the company has entered a ... Park”). The agreement provides Lumeda globally exclusive rights to Roswell Park intellectual ...
(Date:6/23/2020)... BOSTON (PRWEB) , ... June 23, 2020 , ... ... to facilitate access to unique lab-made bioresearch materials, today announced the availability of ... Michael Whitt laboratory at University of Tennessee, enables studies of SARS-CoV-2 viral entry ...
Breaking Biology Technology:
Cached News: